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AR# 24379: LogiCORE FIR Compiler V2.0 - When I select multiple coefficient sets I get zero filter output
LogiCORE FIR Compiler V2.0 - When I select multiple coefficient sets I get zero filter output
When I have multiple coefficient sets, I get zero filter outputs. Why?
This problem occurs when a filter is built that has the following characteristics: - uses multiple coefficient sets - is symmetric - requires multiplier MAC engines - is targeted at the Spartan family in which the output from the filter is zero
The solve this problem, make sure the filter response is set to "non_symmetric" even if the coefficients are symmetric.